Remembering ‘The Exorcist’ at 50

The vehement reaction to “The Exorcist” when it premiered in late 1973 helped create a special place for it in pop culture. The New York Times critic Jason Zinoman gives his perspective on the film’s lasting impact, the screenwriter’s headstrong ideas for the production and the conflict that turned “The Exorcist” into one of the scariest movies of all time.